package ch06_抽象类接口与嵌套类;

class A {
	class B {
		
		void play() {
			System.out.println("执行内部类命令！");
		}
	}
}

public class Inner {
	
public static void main(String[] args) {
	A u=new A();
	A.B c = u.new B();
	c.play();
}
}
